public DataTable getCAP_CHUNGCHI_HV_SearchLastName(string lastName) { HOCVIEN searchLastName = new HOCVIEN(); searchLastName.HOV_LastName = lastName; DAL_CAP_CHUNGCHI dao = new DAL_CAP_CHUNGCHI(); return(dao.getCAP_CHUNGCHI_HV_SearchLastName(searchLastName)); }